Means for dust-proofing rotating gear-cases



R. H. WP'H'E'E. MEANS FOR DUST PROOFING ROTATING GEAR CASES. APPLICATION FILED MAY x, I919.

1,359,55i Patented No 23,1920

CLEVELAND CQMPAHY, 01E 015E163, .n. UUPAEGRATKQET @Hllt'l.

Slpecification of Letters llatent.

Patented Nov. 22?, fi ht Application filed may l, 1919. Serial 3T0. fwd/96?.

T 0 all whom it may concern;

Be it known that l, Roman H. "WHITE, a citizen of the United States, residing at Cleveland Heights, in the county of Guyahoga and State of Ohio, have invented a certain new and useful lmprovement in Means for Dust-Proofing Rotating Gear- Cases, of which the following is a full, clear, and exact description.

in certain kinds of motor vehicles, as for example, trucks and tractors, the driving wheels are hollow, and each contains an internal ring gear; and each of said Wheels is rotated by a pinion which engages said ring gear, and is fixed to a shaft, that in turn is mounted in bearings carried byvthe main frame of the vehicle.

The hollow center of the wheel serves, therefore, as a gear case, in which it is ole-- sirable to confine oil to lubricate the gears and the wheel bearings, and from which it is equally desirable to exclude dust, dirt,

water and the like. lt is customary to close the outer end of the gear case by means of a plate which is an integral part of the wheel.

The object of the present invention is to.

provide a suitable closure for the inside end of this gear case of such a character that it will prevent the escape of oil from the gear case, and will prevent the entry oi dust, dirt, and water to the same.

The invention consists in the construction and combination of parts shown in the drawing and hereinafter described and pointed out definitely in the appended claims.

In the drawings, Figure 1 is an inside view of a part of said wheel with certain parts broken away to show the parts behind the broken away parts; Fig. 2 is a central sectional view of more than one half of the wheel.

rim and is integral with both, and furnishes the outside wall of the gear case within the The hub 12 is rotatably mounted upon a nonrotating axle 20 on a bracket 21 i which is fixed to the main frame of the vehicle. An internal ring gear 25 is fitted within the cylindrical flange ll of the wheel and is there secured. pinion 30 located within the wheel meshes with this ring gear and is fixed to a rotating driving shaft 31 which is rotatably mounted in hearings in a bracket 32 which is also secured to the main frame of the machine. I

To the extent above described the corn struction as shown is substantially like that shown in the above mentioned prior patent.

' The. means for making a dust and (water tight joint between the wheel and its supadjacent face of the ring gear 25.

packing ring has at the inner periphery a cylindrical flange 51 which extends away from said ring gear.

A ring 70 is rotatably titted within the flange 14- and has its outer periphery the cylindrical flange 71 the function ct which is to give a wider bearing for the ring in the wheel flange.

lln the'annular space bounded by the two rings and and by the wheel flange it and the flange 51 of ring 50, a, felt pacb'ng rin 53 is fitted. This ring when slightly detornied by ressure from ring 70 will tightly fit within the flange i l of the wheel. A plurality of flat springs are fined by rivets or spot welding to the disk ll); and their tree outer ends engage the face of ring '70 and press it yieldingly the felt 53 thereby slightly deforming will make a tight joint with :eover the pressure he s;

A packing holding ring 50 is h'v inahe a ti ht water dnst d nit sheet H)" T n J; geint eetween them he ends ct the springs 80 between ribs or tags t9 en the g; 70, and thereby held said ring i'etatien. a An annniat dish $0 at eanvaa ies at anategcus Y's einpieyed he ciese the epeni hetweei 4O Wt the enter edge at canms dish is sis hetween ring {0 and a ei tats" J icing eht i tU ring which is tiveted he ceinhinatien at a totatahie heiicw wheei hath cencenttic eyhndticai iiange an intern 1 ng gear :titted'te and seaweed w h' e said a fined htaehet ad e epen end of said flange, a shaft dd hirachet, pinien secured a with said ting gear, d to hi'aehet within said "e paehing'hciding which the wheat and has at its inner periphery which extends toward said dish, a secend ring which is rotatahiy titted within said wheel flange, ring of packing as material titted in the space between said two I rings and between the flange on the first named ring and the flange on the wheel, and a plurality of springssecni'ed to said disk and'pressing yieidingiy against the face of as the last mentioned ring. t'

- 2. The combination ofa retatable hollow wheel having a concentidecylindrical flange, \fii'l internal ring gear fitted to and secured within the said flangepa fixed bracket adjacent the open' end of said flange, a shaft mounted insaid bracket, a pinion secured to said shaft in mesh with said ring gear, and a disk fixed to said bracket within said wheel flange, a packing helding ring which is fixed to the wheei and has at its inner 'wheei having desciihed my inventicn, l claim fl ece'fi iii-the e and between named 55 and the tit) 3. The schist icnai inennted in said shaft in it dish fined in the space he and i. A

at spin secured b yieidinggiy th c tiened sing and an i at dish at canvas 01 the iihe which is c ped tn the cntside face at the East mentioned. ring and to the inside face at said ring.

t, The cen'ihinatien oi? tetatahie hoiicw wheel having a ccncentric cylindrical flange, a driving shaft which projects inte, said wheel, gearing within the wheel for transmitting motion for said shah to said wheel,

a fixed dish within said wheel flange, a ring of packing material fitted within said wheel. flange, a non-rotatable ring within said wheel flange, springs acting on said non-rotating ring to press it against said ring of packing, and a ring of canvas or the like which is clamped to said non-rotating ring and to the said disk.

Intestimeny whereof, IhEIeLilltJO affix my signature.

noiit n" it, within 

